@book { NotizbuchBulletJournalTotenschein,
    title = "Notizbuch / Bullet Journal Totenschein",
    author = "Tanja {Karmann} and Carsten {Schmitt}",
    year = "2022",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1273757"
}